by Marion Nestle
May 8 2013

New studies on artificial sweeteners: a puzzle

FoodNavigator.com reports two new studies on artificial sweeteners.

The first report says that artificially sweetened sodas do not lead to increased sugar or calorie consumption.

Our study study does not provide evidence to suggest that a short-term consumption of DBs [diet beverages], compared with water, increases preferences for sweet foods and beverages.

If this result proves repeatable, it leaves open the question of why the prevalence of obesity has gone up in parallel with increasing consumption of diet sodas (which it has).  

So how come diet sodas don’t seem to help people maintain weight, on average?  We still don’t know.

The second report is about a study that links diet sodas to type 2 diabetes.   In a study following 66,000 women for 14 years, it found both sugar-sweetened beverage consumption and artificially sweetened beverage consumption to be associated with increased type-2 diabetes risk. 

How come?  We still don’t know.

One thing seems pretty clear from such studies: diet drinks don’t appear to do much good for most people and aren’t any better for health than regular sodas.

Water, anyone?